B1046
Diagnosis Sensor Unit
B1046 is an OBD-II diagnostic trouble code meaning: Diagnosis Sensor Unit. Common causes: corrosion of diagnostic unit contacts, broken wires in the srs system harness. Estimated repair cost: $56–167.
Symptoms
- Airbag light is on
- SRS is inactive
- Lack of response to diagnosis
Causes
- Corrosion of diagnostic unit contacts
- Broken wires in the SRS system harness
- Internal diagnostic unit fault
- Unit power problems
How to Fix
- Check the wiring harness for breaks and corrosion
- Diagnose the SRS unit for errors
- Replace the diagnostic unit if necessary
- Reset errors and check the system
Related codes
FAQ
What does the B1046 code mean?
B1046 is an OBD-II diagnostic trouble code that indicates: Diagnosis Sensor Unit
What causes a B1046 error code?
The most common causes of B1046 include: Corrosion of diagnostic unit contacts; Broken wires in the SRS system harness; Internal diagnostic unit fault; Unit power problems.
How do I fix a B1046 diagnostic trouble code?
To fix B1046: Check the wiring harness for breaks and corrosion. Diagnose the SRS unit for errors. Replace the diagnostic unit if necessary. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1046?
Limited driving only, diagnose soon
How much does it cost to fix B1046?
The estimated repair cost for B1046 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat